R1
SAFETY NOTICE
PLEASE READ THIS ENTIRE MANUAL BEFORE YOU INSTALL AND USE YOUR NEW ROOM HEATER. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY, OR EVEN DEATH.
FOR USE IN THE U.S. AND CANADA. SUITABLE FOR INSTALLATION IN MOBILE HOMES
IF THIS HARMAN STOVE IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR SAFETY, FOLLOW
INSTALLATION DIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
CONTACT YOUR LOCAL AUTHORITY (SUCH AS MUNICIPAL BUILDING DEPARTMENT, FIRE DEPARTMENT, FIRE
PREVENTION BUREAU, ETC.) TO DETERMINE THE NEED FOR A PERMIT.
CETTE GUIDE D'UTILISATION EST DISPONIBLE EN FRANCAIS. CHEZ VOTRE CONCESSIONNAIRE DE HARMAN STOVE
COMPANY.
SAVE THESE INSTRUCTIONS.
The Harman PC 45 Corn/Pellet Stove
Installation & Operating Manual
R3
“Ce manuel est disponible en Français sur demande”
2 PC 45 Corn/Pellet Stove
3PC 45 Corn/Pellet Stove
Introduction
Harman Stove Company
352 Mountain House Road
Halifax, PA 17032
sales@harmanstoves.comsales@harmanstoves.com
SAFETY NOTICE: IF THIS HARMAN STOVE IS NOT PROP-
ERLY INSTALLED. A HOUSE FIRE MAY RESULT. FOR
YOUR SAFETY, FOLLOW THE INSTALLATION DIREC-
TIONS CONTACT LOCAL BUILDING OR FIRE OFFICIALS
ABOUT RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
Please copy your
serial number from the
label on your stove to
the box below.
SERIAL NUMBER
Assembly & Installation 4
Installation 6
Venting 7
Automatic Operation 13
ESP Control 17
Maintenance 19
Trouble Shooting 22
Feeder Parts 23
Specifications 23
Options 24
Wiring Diagram 26
Parts List 27
Warranty 28
Table of Contents
The PC 45 Corn Stove makes burning corn more convenient than ever. It’s special Sidewinder Burn Pot
allows corn to be burned from three days up to a week without cleaning, depending on the corn’s moisture
level and burn rate.
Automatic Ignition allows you to fill the hopper, set your desired room temperature and walk away. The PC
45 will adjust it’s feed rate based on the temperatures received by the room sensor, and keep your home
at the set temperature.
The PC 45’s automatic temperature control system eliminates the warm/cold cycle associated with ther-
mostatically controlled heating systems and even turns the PC 45 on and off as needed.
Our exclusive Accordion Heat Exchanger and Air Cooled Combustion Blower allows the PC 45 to produce
maximum heat without creating high exhaust temperatures. The Outside Air option can increase heat
efficiency even more.
The PC 45 can burn corn with moisture levels up to 16%, with 14.5% or less being ideal. It can also burn
pellets regardless of ash content. This allows you to buy lower cost fuel and still achieve the same results.
4 PC 45 Corn/Pellet Stove
Assembly and Installation
Unpacking
The PC 45 is bolted to the skid to prevent move-
ment during shipping.
To free the stove from the skid you must re-
move the hold-down bolts in the rear of the pedestal
base.
Installing rear cover panels
The rear cover panels are removed from the
stove to make it easier to get at the hold-down bolts.
The rear cover panels are packed inside the
hopper and should be installed on the stove as
shown. It is recommended that the rear covers are
installed after the unit is in place and the vent pipe is
installed.
Firebrick
Install the firebrick vertically on the angle above
the burnpot.
Rear
Cover Panels
Fig. 1
Fig. 2
Shipping Bolts: These holes are
also used for Mobile Home
Installation
5PC 45 Corn/Pellet Stove
Door Assembly/Installation Tips
Assembling the door
•
Referring to the diagram, note how the various
components of the door system fit together.
•
Lay the load door face down on a soft surface.
•
Clean the glass and gold door using a nonabrasive
cleaner. Install the glass gasket around the outer edge
of the front face of the door glass carefully to insure
proper sealing. Set the glass pane gently onto the
door. Install the hold-down clips and tighten with bolts
as shown.
•
Install door on stove with hinge pins.
•
Install door handle as shown on the diagram.
NOTE: With the flat surface of the paw bolt to the
inside of the door.
•
Turn the paw bolt "in" for approx. (17) turns.
•
Turn the brass elbow onto the paw bolt approx. (5)
turns.
•
Align the set screw with the flat spot on the paw
and tighten.
•
After attaching the door handle, close and latch
the door by turning the handle to the six o'clock
position. Does the door rope compress? If not,
loosen the set screw, turn the paw bolt one more
turn into the door. Repeat as required to achieve a
tight door fit.
NOTE: Remember to thoroughly clean the glass and
the gold door frame before lighting the stove for the
first time.
Bottom Glass Retainer Clip Instructions
(4) 10-24 x 3/8" button head allen
screws supplied in the door kit
(1) left hand
(2) glass retainer clips
(1) right hand
Follow the instructions in the door kit except for the
bottom glass retainers. Install the special glass
retainer clips to the bottom of the door.
There is a left and right retainer clip with a radius to
match the door bottom. The fiber glass rope on the
clip must be facing the stove body when installed,
NOT FACING THE GLASS!!
These clips are designed to direct the air wash air
more evenly.
4 GLASS
RETAINER
CLIPS 4 GLASS RETAINER
BOLTS
GLASS
GLASS
GASKET
DOOR
HINGE
PINS
PAW
BOLT
Fig. 3
(2) Glass Retainer Clips
supplied with the door kit
Fig. 4
Fig. 5
BRASS
HANDLE
HANDLE
BOLT
WOOD
HANDLE
SET
SCREW
Gasket
goes
toward
the stove
Gasket goes
toward the stove
6 PC 45 Corn/Pellet Stove
6"
Fig. 7
10"
2"
1"
6"
With Side Shields
FLOOR PROTECTOR
6"
Fig. 8
18"
Without Side Shields
FLOOR PROTECTOR
FLOOR PROTECTOR
Fig. 6
Fig. 9: Refer to page 18 for
detailed draft settings and
adjustment procedures.
9"-13"
9"-13"
9" With Side Shields
13" Without Side Shields
Installation
Installing
Place the stove on a noncombustible floor protec-
tor that extends 6 inches to the front, 6 inches to the
sides and 1 inch to the rear of the stove. The minimum
floor protector material is 24 gauge sheet metal.
Place the stove away from combustible walls at least
as far as shown in figures 6,7 & 8. Please note the differ-
ence in side wall clearance with and without side shields.
Note that the clearances shown are minimum for
safety but do not leave much room for access when clean-
ing or servicing. Please take this into account when plac-
ing the stove.
Connect the power cord to a 120 V.A.C. 60Hz
grounded receptacle. (A surge protector is recommened
to protect the circuit board).
Prior to installing the flue pipe, connect a draft meter
to the stove as shown in fig. 9. (The draft meter must
have a minimum range of 0"- 0.5"). Turn stove to "TEST"
Mode and record the draft reading ______. After the flue
pipe is connected, check the draft reading again making
sure all doors and windows in the home are closed. If
this reading is more than.05" higher than the unconnected
reading, check for possible restrictions or the need for
outside air. (See page 8).
Mobile Home Installation
When installing this unit in a mobile home several
requirements must be followed:
1. The unit must be bolted to the floor. This can be done
with 1/4" lag screws through the 2 holes in the base plate.
2. The unit must also be connected for the outside
air. See page 8.
3. Floor protection and clearances must be followed
as shown.
4. Unit must be grounded to the metal frame of the
mobile home.
CAUTION: This appliance must be vented to the out-
side.
Due to high temperatures, the stove should be placed out of traffic
and away from furniture and draperies.
Children and adults should be alerted to the haz-
ards of high surface temperatures and should stay away
to avoid burn to skin and/or clothing.
Young children should be carefully supervised when
they are in the same room as the stove.
Clothing and other flammable materials should not
be placed on or near this unit.
Installation and repair of this Harman Stove should
be done by a qualified service person. The appliance
should be inspected before use and at least annually by a
qualified service person. More frequent cleaning will be
required. It is imperative that control compartments, burn-
ers, and circulating air passageways of the stove be kept
clean.
Mobile home installation should be done in accordance
with the Manufactured Home and Safety Standard (HUD),
CFR 3280, Part 24.
7PC 45 Corn/Pellet Stove
Venting
Requirements for Terminating the Venting
WARNING: Venting terminals must not be re-
cessed into a wall or siding.
NOTE: Only PL vent pipe wall pass-throughs
and fire stops should be used when venting through
combustible materials.
NOTE: Always take into consideration the ef-
fect the prevailing wind direction or other wind cur-
rents will cause with flyash and /or smoke when plac-
ing the termination.
In addition, the following must be observed:
A. The clearance above grade must be a mini-
mum of 18".
1
B. The clearance to a window or door that may
be opened must be a minimum of 48" to the side,
48" below the window/door, and 12" above the win-
dow/door.
1
( with outside air installed, 18” )
C. A 12" clearance to a permanently closed
window is recommended to prevent condensation
on the window.
D. The vertical clearance to a ventilated soffit
located above the terminal within a horizontal dis-
tance of 2 feet (60 cm) from the center-line of the
terminal must be a minimum of 18".
E. The clearance to an unventilated soffit must
be a minimum of 12".
F. The clearance to an outside corner is 11"
from center of pipe.
G. The clearance to an inside corner is 12".
H. A vent must not be installed within 3 feet (90
cm) above a gas meter/regulator assembly when
measured from the horizontal center-line of the regu-
lator.
1
I. The clearance to service regulator vent outlet
must be a minimum of 6 feet.
1
J. The clearance to a non-mechanical air sup-
ply inlet to the building or the combustion air inlet to
any other appliance must be a minimum of 48”.
1
K. The clearance to a mechanical air supply
inlet must be a minimum of 10 feet.
1
(with outside air installed, 6 feet )
L. The clearance above a paved sidewalk or a
paved driveway located on public property must be
a minimum of 7 feet.
1,2
M. The clearance under a veranda, porch, deck
or balcony must be a minimum of 12 inches.
1,3
NOTE: The clearance to vegetation and other
exterior combustibles such as mulch is 36” as mea-
sured from the center of the outlet or cap. This 36”
radius continues to grade or a minimum of 7 feet
below the outlet.
1
Certain Canadian and or Local codes or regu-
lations may require different clearances.
2
A vent shall not terminate directly above a side-
walk or paved driveway which is located between
two single family dwellings and serves both dwell-
ings.
3
Only permitted if veranda, porch, deck, or bal-
cony is fully open on a minimum of 2 sides beneath
the floor.
NOTE: Where passage through a wall, or
partition of combustible construction is desired,
the installation shall conform to CAN/CSA-B365.
(if in Canada)
V
A
= Vent terminal
= Air supply inlet
Fixed
Closed
Openable
Openable
Fixed
Closed
Inside Corner
Detail
= Area where terminal is not permitted
8 PC 45 Corn/Pellet Stove
Outside air flex pipe
goes here
Inlet Cover part#
1-10-08542
Flex pipe part#
2-00-08543
HRV
When installing in a house with a Heat Reclaim-
ing Ventilation System (HRV) be sure the system is
balanced and is not creating a negative pressure in
the house.
Outside Air
Outside air is optional except in mobile homes
and where building codes require. The benefit of
outside air is mainly noticed in small very tight
houses.
To install outside air use 2 3/8" I.D. flex pipe
part number 2-00-08543. There is a break-away hole
on the rear panel which must be removed before
connecting the flex pipe. The pipe should be run out-
side and terminate 3 feet or more to the side or be-
low the vent pipe outlet. Never terminate the outside
air above the vent pipe outlet. The maximum length
run of this pipe is 15 feet. If a longer run is needed
the size must be increased to 3". Inlet cover part
number 1-10-08542 should be used to keep birds,
rodents etc.out of pipe.
Vent Pipe
Pellet venting pipe ( also known as PL vent ) is
constructed of two layers with air space between
the layers. This air space acts as an insulator and
reduces the outside surface temperature to allow a
clearance to combustibles of only 3 inches. The
sections of pipe lock together to form an air tight
seal in most cases; however, in some cases a per-
fect seal is not achieved. For this reason and the
fact that the PC45 operates with a positive vent pres-
sure we specify that the joints also be sealed
with clear silicone.
Venting
Fig. 11
A combustion blower is used to extract the com-
bustion gases from the firebox. This causes a nega-
tive pressure in the firebox and a positive pressure
in the venting system as shown in fig. 10. The longer
the vent pipe and more elbows used in the system,
the greater the flow resistance. Because of these
facts we recommend using as few elbows as pos-
sible and 15 feet or less of vent pipe. The maximum
horizontal run should not exceed 48". If more than
15 feet of pipe is needed, the diameter should be
increased from 3" to 4" because a larger pipe causes
less flow resistance. Be sure to use approved
pellet vent pipe wall and ceiling pass through
fittings to go through combustible walls and
ceilings. Be sure to use a starting collar to attach
the venting system to the stove. The starting col-
lar must be sealed to the stove with high temp
silicone caulking.
+ = Positive static pressure
= Negative static pressure
Fig. 10
IMPORTANT NOTICE
Pellet Vent Pipe or PL Vent Pipe Must be used.
9PC 45 Corn/Pellet Stove
Fig. 12
3 ft.
to
combustibles
3 ft.
to
combustibles
Venting
#1 Preferred method
This method provides excellent venting for nor-
mal operation and allows the stove to be installed
closest to the wall. Two inches from the wall is safe;
however, four inches allows better access to remove
the rear panel. The vertical portion of the vent should
be three to five feet high. This vertical section will
provide natural draft in the event of a power failure.
#2 Preferred method
This method also provides excellent venting for
normal operation but requires the stove to be installed
farther from the wall. The vertical portion of the vent
should be three to five feet high and at least three
inches from a combustible wall. This vertical sec-
tion will provide natural draft in the event of a power
failure.
If the stove is installed below grade the vent
termination should be at least 1 foot above grade.
CAUTION
Keep combustible materials (such as grass, leaves,
etc.) at least 3 feet away from the flue outlet on the
outside of the building.
Fig. 13
10 PC 45 Corn/Pellet Stove
Fig. 14
Fig. 15
Venting
#3 Installing into an existing
chimney ( US only )
This method provides excellent venting for nor-
mal operation. This method also provides natural
draft in the event of a power failure. If the chimney
condition is questionable you may want to install a
liner as in method #6.
#4 Installing into an existing
fireplace chimney ( US only )
This method provides excellent venting for nor-
mal operation. This method also provides natural
draft in the event of a power failure.
The damper area must be sealed with a steel
plate or fiberglass. A cap should be installed on the
chimney to keep out rain. If the chimney condition is
questionable you may want to install a liner all the
way to the top as in method #5.
11PC 45 Corn/Pellet Stove
Fig. 16
Venting
#5 Installing into an existing
fireplace chimney (US and Canada)
This method provides excellent venting for nor-
mal operation. This method also provides natural
draft in the event of a power failure.
In Canada and some places in the US it is
required that the vent pipe extend all the way to the
top of the chimney.
In this method a cap should also be installed
on the chimney to keep out rain. Be sure to use
approved pellet vent pipe fittings. Seal pipe joints
with silicone in addition to the sealing system used
by the manufacturer. Pipe size should be increased
to 4" using this method.
#6 Installing into an existing
chimney ( US and Canada )
This method provides excellent venting for nor-
mal operation. This method also provides natural
draft in the event of a power failure.
In Canada and some places in the US it is re-
quired that the vent pipe extend all the way to the top
of the chimney. The pipe or liner inside the chimney
should be 4"diameter.
In this method a cap should also be installed
on the chimney to keep out rain.
Fig. 17
12 PC 45 Corn/Pellet Stove
Fig. 18
No insulation or
other combustible
materials are
allowed within 3"
of the PL vent
pipe.
PL vent manufacturer's
firestop spacer and
support
(See Page 6 for
corner installation
clearances)
Minimum flue vent configuration
It is recommended that
outside air be installed with this
venting configuration.
Min. above ground level
12"
Storm collar
Flashing
3" min.
3" min.
12" min.
3" min.
Venting
Fig. 19
Fig. 20
#7 Installing through the ceiling vent
Through the ceiling vent, follow PL vent
manufacturers recommendations when using wall and
ceiling pass through.
DO NOT INSTALL A FLUE DAMPER IN THE
EXHAUST VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE.
INSTALL VENT AT CLEARANCES SPECIFIED
BY THE MANUFACTURER
CAUTION
DO NOT INSTALL IN SLEEPING ROOM
WARNING
CAUTION
THE STRUCTURAL INTEGRITY OF THE
MOBILE HOME FLOOR, WALL, AND CEILING/
ROOF MUST BE MAINTAINED.
THE STOVE IS HOT WHILE IN OPERATION.
KEEP CHILDREN, CLOTHING AND
FURNITURE AWAY. CONTACT MAY CAUSE
SKIN BURNS.
13PC 45 Corn/Pellet Stove
The PC45 corn/pellet stove is more than just automatic ignition, it is also automatic temperature
control. The automatic system will allow the fire size to be adjusted to match the heating needs
and even put the fire out if necessary. If heat is needed after the fire is out, the PC 45 will
automatically re-ignite and adjust the fire size to match the heating need. The totally automatic
room sensor mode is recommended because of its efficiency.
The unit can be switched between "AUTO" and "MANUAL" at any time during operation.
AUTOMATIC IGNITION/OPERATION
Fig. 21:
Room Temperature Mode: This setting will produce
a room temperature of 70 degrees with the distribution blower
at medium speed.
This setting will produce medium heat with the
distribution blower on "low".
This setting will produce continuous maximum heat output
with the distribution blower at full speed.
Stove Temperature Mode
Igniter switch to "AUTO"
Room Temperature Mode
In "Room Temp Mode" heat output is controlled auto-
matically by the Room Sensing Probe. When the Room Sens-
ing Probe calls for heat, the stove will increase output. When
the Room Sensing Probe is getting close to the set tempera-
ture, the stove will begin to level off output and keep the fire
burning at just the right temperature to maintain that setting.
High output is determined by the feed rate setting.
This setting, generally on #2 (corn) or #4 (pellet), can be
increased if higher burn rates are necessary.
When burning corn the feed rate setting can be ad-
justed anywhere within the yellow range with a #3 setting
being the maximum setting, #1 the lowest setting. This set-
ting will vary depending on the quality of corn used.
When burning pellets the feed rate setting can be
adjusted within the full range between #1 on the low side to
#6 on the high side.
Overfeeding is not a safety concern, but the fire may
be pushed off the burnpot and extinguish in the ash pan.
In "Room Temp Mode" a constant fuel consumption rate
is sacrificed for exact room temperature. Therefore, as it gets
colder more fuel will be burned automatically.
The distribution blower speed will vary according to the
position of the mode selector pointer, and fire size.
Igniter switch to "AUTO"
Stove Temperature Mode
This allows for automatic ignition upon start-up only.
The unit can then be set at any desired setting. The heat
output and fuel consumption will remain constant regardless
of room temperature.
The unit's low burn or maintenance setting is as low as it
will go. It will not go out unless it runs out of fuel or is turned off.
Shut-Down Procedure
To kill the fire or stop burning the stove, turn the Mode
Selector to "OFF". This will cause the fire to diminish and
burn out. When the fire burns out and the stove cools down
everything will stop. NOTE: The combustion blower
motor will run for 5 hours after the stove is completely
cool. This insures that all fuel in the burnpot and ashes
located in the ash pan are completely cold before shut
down of the combustion motor.
If you pull the plug to shut down the stove, all motors will
stop. This may cause incomplete combustion and smoke in
the firebox. If the load door is opened the smoke may es-
cape.
The best way to shut down the stove is simply let it run
out of fuel, then the stove will shut down automatically.
Fig. 22
14 PC 45 Corn/Pellet Stove
Starting the Fire
Igniter Switch to"AUTO"(up position)
Make sure the unit is plugged into a 120 VAC, 60 HZ
electrical source. The power light should be the only
light lit. Anytime there is interruption in power at the
receptacle, the combustion blower will run for 1
minute after the power is regained.
1.Turn the Mode Selector to "OFF"
2. Fill the hopper with corn or pellets.
3. Clean the burn pot and housing, if necessary.
4. If starting after an empty hopper, turn the feed
adjuster to "TEST" until the fuel is visible in the auger
tube opening. This also allows you to check the
motors for operation.
NOTE: The auger motor will not operate with the
view door or ash door open.
NOTE: The initial start-up on a new stove may require
the corn to be purged into the burnpot area before
continuing to step 5.
5. Turn the feed adjuster to #2 (corn) or #4 (pellet)
6. Flip the igniter switch up into the "AUTO" position.
7. Turn the temperature dial to the desired room
temperature.
8. Turn the mode selector dial to Room Temperature
or Stove Temperature.
9. Fill the hopper with corn or pellets and remove the
ashes as required.
AUTOMATIC START UP
"NEVER USE GASOLINE, GASOLINE-TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR
SIMILAR LIQUIDS TO START OR "FRESHEN UP " A
FIRE IN THIS HEATER. KEEP ALL SUCH LIQUIDS
WELL AWAY FROM THE HEATER WHILE IN USE".
Warning
Fig. 23
15PC 45 Corn/Pellet Stove
The PC45 Corn/Pellet Stove is capable of manual operation. This also allows the op-
erator to manually control operation during an emergency (i.e. ignitor failure, when using a
502H battery backup, or when using certain generators.)
The unit can be switched between "AUTO" and "MANUAL" at any time during operation.
NOTE: When starting the unit in the "AUTO" mode and switching to "MANUAL",
the fire must be large enough to turn the ignitor light off (located on the control
board). This is a signal that the start cycle is completed and the fire will not go out.
MANUAL IGNITION/OPERATION
Manual Stove Temperature Mode
Fig. 24: Room Temperature Mode: This setting will produce a
room temperature of 70 degrees with the distribution blower
at medium speed.
O
O
Igniter Switch to "MANUAL"
Room Temperature Mode
The fire will have to be lit with starting gel and a
match, or started automatically, see "Automatic Op-
eration". Turn to "Manual" position when the fire is es-
tablished.
The difference between "AUTO" Room Tempera-
ture Mode and "Manual" Room Temperature Mode is
that the fire will not go out as the room temperature
goes above the control board setting. The unit can only
go to low burn and will remain there until it runs out of
fuel or until more heat is needed and the feed rate in-
creases. Feed rate adjustments and dial settings are
the same as "AUTO" settings.
Igniter Switch to "MANUAL"
Stove Temperature Mode
The advantage of this mode is to allow the opera-
tor to have a large viewing fire without blowing extra
heat into the room.
During operation, with the temperature dial set at
#5 or less, the distribution fan will not operate. A #5 on
the temperature dial and a #5 on the feed adjuster is
approximately 80% output. It is not necessary to oper-
ate the distribution blower below this point. Therefore,
there can be a higher feed rate ( a larger viewing fire)
without an excess of hot air blowing into the room.
An example of when to use the Manual Stove Tem-
perature Mode is if you want to watch a large fire and
the room is already up to temperature. The Stove Tem-
perature Mode allows you to have a larger fire and a
lower sound level, without the distribution blower.
NOTE: During the use of this mode, if you
keep increasing the temperature dial setting to in-
crease the fire size, the distribution blower will au-
tomatically come on when the ESP Temperature
reaches 350
o
F, or 81% output.
Fig. 25: This setting will produce a large viewing fire without a
distribution blower operating.
16 PC 45 Corn/Pellet Stove
MANUAL START UP
Starting the Fire
Igniter Switch to"MANUAL"
(down position)
Make sure the unit is plugged into a 120 VAC, 60
HZ electrical source. The power light should be the only
light lit. Anytime there is interruption in power at the
receptacle, the combustion blower will run for 1 minute
after the power is regained.
Burning Corn
1. Turn the Feed Adjuster to desired feed rate, approximately #2.
2. Turn the Mode Selector to "OFF" and then to the desired
mode. This will reset the control and start the combustion
motor.
3. Turn the Temperature Dial to the desired setting.
4. Clean the burnpot and housing, if necessary.
5. Fill the burnpot with corn up to the auger shaft. Then place
pellets on top of the corn as high as the shelf area. See corn
burnpot shown on left.
6. Add starting gel on top of the pellets, stir gel into the pellets
and corn for faster lighting.
7. Light the starting gel with a match and close the door.
Operation will begin when the fire reaches the proper
temperature.
8. Fill the hopper with corn and remove the ashes as required.
Burning Pellets
Optional pellet burnpot required to burn pellet fuel.
1. Turn the Feed Adjuster to the desired feed rate,
approximately #4.
2. Turn the Mode Selector to "OFF" and then to the desired
mode. This will reset the control and start the combustion
motor.
3. Turn the Temperature Dial to the desired setting.
4. Clean the burnpot and housing, if necessary.
5. Fill the burnpot with pellets so that the auger tube opening
is covered and slopes away from the auger tube opening.
See pellet burnpot shown on left.
6. Add the starting gel on top of the pellets. Stir the gel into
the pellets for fast lighting.
7. Light the starting gel with a match and close the door.
Operation will begin when the fire reaches the proper
temperature.
8. Fill the hopper with pellets and remove the ashes as
required.
Fig. 26
Corn Burnpot
Optional Pellet Burnpot
"NEVER USE GASOLINE, GASOLINE-TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR
SIMILAR LIQUIDS TO START OR "FRESHEN UP " A FIRE
IN THIS HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY
FROM THE HEATER WHILE IN USE".
Warning
Fig. 27
Fig. 28
Shut-Down Procedure
To kill the fire or stop burning the stove, turn the Mode
Selector to "OFF". This will cause the fire to diminish and burn
out. When the fire burns out and the stove cools down every-
thing will stop. NOTE: The combustion blower motor will
run for 5 hours after the stove is completely cool. This in-
sures that all fuel in the burnpot and ashes located in the ash
pan are completely cold before shut down of the combustion
motor.
If you pull the plug to shut down the stove, all motors will
stop. This may cause incomplete combustion and smoke in the
firebox. If the load door is opened the smoke may escape.
The best way to shut down the stove is simply let it run out
of fuel, then the stove will shut down automatically.
17PC 45 Corn/Pellet Stove
AUTOMATIC IGNITION ESP CONTROL
Feed adjuster
Sets the maximum
feed rate
Test
Runs all motors at full
speed for one minute
to check operation.
After two minutes the
stove will go to
minimum burn and
the blowers will
alternate from high to
low every minute to
remind you that you
are still in "Test
Mode".
Igniter switch
Set to appropriate
Start-Up mode.
Distribution Blower
speed adjustment range.
L = low
H = high
Variable speed anywhere
between L and H;
although as the stove
temp. goes up , so does
the L and H scale.
Temp dial
Allows you to adjust the room temperature in Room
Temp Mode using the outer scale marked in degrees
Fahrenheit. It also allows you to adjust the stove
temperature while in Stove Temp Mode using the inner
scale marked from 1 to 7.
Mode Selector
Allows you to choose
between Room Temp Mode,
Stove Temp Mode, or OFF.
Also allows you to vary the
distribution blower speed by
turning the knob to the high
or low side of each mode.
Power Light
Indicates power to the
control.
Indicates power to the
feed motor.
Indicates igniter is on.
Indicates power to
combustion blower
Status Light
Will be lit in either stove
or room temp mode when
pointer is not within off
position band except
after normal shut down.
Blinks to indicate errors
listed below.
Indicates power to
distribution blower.
6 Blinks : Indicates that the control has calculated
poor or incomplete combustion occurring for more
than 50 minutes. See Troubleshooting section for
more details.
A six blink status may be set if the stove is allowed
to run out of pellets. To reset, turn mode selector to
"OFF" then back on to the desired mode. If the unit
was not out of pellets, see Troubleshooting section,
Page 24, for more details.
* Manual reset- Disconnect power cord for a few
seconds and reconnect. If error still occurs call your
Harman Dealer.
Status light error message
s:
1 Blink: Indicates control board self diagnostic fail-
ure. This requires a manual reset*.
3 Blinks: Indicates ESP (Exhaust Sensing Probe)
failure. This requires a manual reset*.
4 Blinks: Can occur only in Room Temp Mode and
indicates Room Sensing Probe failed or not installed.
If a Room Sensing Probe is then installed, the sta-
tus light will automatically reset.
NOTE: Unit will not start in "AUTO" with this status
error.
5 Blinks (In Igniter Auto. Mode Only): Indicates
that the unit has failed to light within the 45 minute
start cycle. To reset - Turn Mode Selector to "OFF",
then turn to either mode again.
Dealer Diagnostic Port
For dealer maintenance use
only. Requires special DDM
monitor supplied to Harman
Dealers exclusively.
18 PC 45 Corn/Pellet Stove
These units are pre-tested at the factory with
exactly 120 Volts A.C., 60 Hz. They are checked and
adjusted for firebox tightness, gasket leakage, motor
operation and ignitor operation. The PC 45 is then
factory set at a mid-point adjustment and in most
cases will not need any adjustments. NOTE: The
factory low draft setting may not be correct for
the units permanent installation conditions.
The control board on the PC45 is equipped
with a low draft adjustment port. Located on the
control face just to the right of the igniter light. This
voltage adjustment is provided to allow the unit to be
adjusted for the household voltage where the unit is
going to be in permanent operation. NOTE: The line
voltage varies from area to area and often home to
home.
The low draft voltage should be adjusted to
achieve the most efficient burn on low burn or
"maintenance". This voltage adjustment allows the
installer to change the low voltage set point
approximately 10 volts. This adjustment should be
done by the installer during set up because a draft
meter reading is required to insure proper set up.
If the unit is not adjusted properly, it does not
cause a safety concern. If the unit is adjusted too
high, only effiency is lost. If the unit is adjusted too
low, the low draft pressure switch will not allow the
feeder motor or the igniter to operate.
Combustion Motor
Speed Control
Low draft only set
point.
The small straight
screwdriver slot is
plastic; therefore, the
unit can be adjusted
while in operation.
Fig.29
Fig. 30
A simple draft test should be performed after
completing the flue pipe installation. To record the
results for future reference:
1. Plug unit into a 120VAC, 60 HZ outlet.
2. Close the hopper lid, front view door, and the ash
pan access door. Neither fuel or a fire are required
for this test.
3. With the mode selector in the "OFF" position,
turn the feed adjuster to "TEST".
4. Record the high draft_____in W.C. (Normal is
-.35 to -.55) The control will be on the High Draft for
a total of 2 minutes.
5. After 2 minutes is up, the combustion motor will
go down to low draft and the distribution blower will
go on high. Allow approximately 15 seconds to pass
for the combustion motor to slow before checking
the low draft.
6. If the low draft is between -.25 and -.35, record
the reading _____ in W.C. If the reading is higher,
slowly turn the set screw counter-clockwise until the
draft lowers. If the reading is lower, very slowly turn
the set screw clockwise until the draft increases.
NOTE: The test mode alternates from high to
low draft every 60 seconds. If more time is
needed for draft adjustment, wait until the next
low draft cycle.
NOTE: In some cases, the draft may not go as
low as -.25 to -.35 even with the set screw
completely counter-clockwise. This is not a
problem.
Low Draft Voltage Adjustment
Draft Meter bolt
hole location
On a PC 45 the draft
hole is under the left
rear corner of the
firebox.
Low Draft Voltage Adjustment
19PC 45 Corn/Pellet Stove
Removing Ashes:
The frequency in which you will need to empty
the ash pan will vary depending on the conditions
that the stove has been operating in. For example: A
stove burning on high continuously will probably need
the ashes removed every 1 to 2 days, whereas a
stove burning on low or cycling off periodically may
be able to go 3 to 8 days or longer.
Ashes should be placed in a metal con-
tainer with a tight fitting lid. The closed con-
tainer of ashes should be placed on a noncom-
bustible floor or on the ground, well away from
all combustible materials, pending final disposal.
If ashes are disposed of by burial in soil or oth-
erwise locally dispersed, they should be re-
tained in the closed container until all cinders
have thoroughly cooled.
It is recommended that the stove is cold and
shut down when removing ash pan.
1. Pull up on the latch handle to swing the ash pan
access door out and to the right.
2. Use the ash pan handle to carry and dispose of
ashes.
3. Slide the ash pan back into the stove.
Cleaning:
If you have been burning corn, the stove will
need to be cleaned approximately once a month.
The amount of corn burned and the frequency of
these cleanings will vary depending on the quality of
the corn used.
If you have been burning pellets, the stove will
need to be cleaned approximately every 2 to 3
months. The amount of pellets burned and the fre-
quency of these cleanings will vary depending on
the quality of the pellets used.
1. Shut down stove and disconnect power cord
to insure that all motors are stopped.
2. Clean the heat exchanger with the scraper as
shown if Fig. 32.
3. Brush or scrape the inside walls of the stove to
remove fly ash.
4. Remove the burn pot for cleaning by:
• Lift up and remove the front plate lock & front plate.
• Remove the auger extension (corn burnpot only).
• Remove the burnpot grate.
• Clean all fines and debris.
• Reinstall in reverse order.
NOTE: See burnpot maintenance section for
a more detailed description on burnpot maintenance
and cleaning.
Maintenance
Scraper
Blower Cover
Latch
Blower
Wheel
Flue Outlet
Heat Exchanger Fins
Fig 32
Fig 31 Corn Burnpot
20 PC 45 Corn/Pellet Stove
ESP Probe
Fig. 39
Be careful not to
damage ESP probe
when cleaning with
brush.
Maintenance
(Cleaning continued)
5. Remove the ash pan.
6. Remove the combustion blower cover by turning
the blower cover latch vertical as shown in fig. 32.
Slide the cover out of the slot on the left. This will
expose the combustion blower wheel and flue outlet,
fig. 35.
7. Clean the blower wheel with a brush and a vacuum
cleaner.
8. Use a brush to clean the flue, being careful not to
damage the ESP probe. The flue goes straight
through into the vent pipe therefore, the vent pipe
can also be cleaned to some extent through the flue
outlet.
9. Reinstall the blower cover and relatch.
10. Slide ash pan into the stove and latch into place.
Cleaning of Feeder Fines Area
1. Remove the rear shields to access the feeder
cover.
2. Remove the wing nut on the feeder cover and
slide the cover off the threaded rod.
3. Remove all fines with a vacuum.
Fig. 37
Brush not
supplied. Can be
found in
hardware stores.
Fig. 33:
Latch "closed "with
blower cover in place. Burn
pot clean-out is closed.
Fig. 34
ESP probe
Fig. 35: Exposed blower
wheel and flue opening,
NOTE: ESP probe is visible.
Fig. 36: Blower cover
removed.
Soot and Fly Ash
The products of combustion will contain small
particles of fly ash. The fly ash will collect in the
exhaust venting system and restrict the flow of the
flue gases. Incomplete combustion, such as oc-
curs during startup, shutdown, or incorrect opera-
tion of the room heater, will lead to some soot for-
mation which will collect in the exhaust venting sys-
tem. The exhaust venting system should be in-
spected after the first month of burning to determine
the frequency of cleaning that will be required. NOTE:
The frequency could vary from once a month to once
a season depending on the quality of the fuel being
used.
Fig. 38: For further details see exploded view on page 23.
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